Relative to the total stable existence of a Sun-like star, how long does the intense, chaotic birth phase consume?

Answer

Less than one percent

The process of forming a star like the Sun takes about 50 million years, while its stable life on the Main Sequence spans approximately 10 billion years, meaning the formation phase is comparatively very brief.

Relative to the total stable existence of a Sun-like star, how long does the intense, chaotic birth phase consume?

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The Life Cycle of Stars - YouTube

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